Vehicle mounted chain-saw wood sawing machine



Dec. 11, 1951 5055 2,578,097

VEHICLE MOUNTED CHAIN-SAW WOOD SAWING MACHINE Filed Aug. 13, 1948 2SHEETS-SHEET l 4 i i INVENTOR /7d/'K 505's Dec. 11, 1951 M. soss2,578,097

VEHICLE MOUNTED CHAINA'SAW woon SAWING MACHINE Filed Aug 13, 1948 2SHEETSSHEET 2 Patented Dec. 1!, 1951 OFFICE VEHICLE MOUNTED CHAIN -SAWWOOD SAWING MACHINE Mark S oss, Spokane, Wash. v Application August 13,1948, Serial No. 44,142

1 Claim. 1

The present invention relates to an improved vehicle mounted chain-sawwood sawing machine" adapted for field work in felling standing trees,

cutting logs, and obstructions, and convertible for selective use with acircular saw and an endless chain saw. Means are also provided foradjusting a circular saw to operative positions within a wide rangebetween vertical and horizontal positions; and the sawing machine isreadily adapted for installation on an automotive vehicle, as a tractor,for transportation purposes and for taking off power from the motor orengine of the automotive vehicle.

The novel sawing machine of my invention includes a minimum number ofparts that may be manufactured with facility at low cost of production,and the parts may be assembled with convenience, and installed andadjusted with ease, to provide a reliable and durable sawing machine forvarious uses. The invention consists in certain novel features ofconstruction and combinations and arrangements of parts as willhereinafter be described and more particularly set forth in the appendedclaim.

In the accompanying drawings I have illustrated two complete examples ofphysical embodiments of my invention wherein the parts are combined andarranged in accord with modes I have devised for the practicalapplication of the principles of my invention. It will however beunderstood that changes and alterations are contemplated and may be madein these exemplifying drawings and mechanical structures. within thescope of my claim without departing from the principles of theinvention.

Figure 1 is a view in side elevation disclosing a tractor equipped withthe sawing machine of my invention for selective use with a circularsaw; and Figure 2 is a top plan view of the structure in Fig. 1.

Figure 3 is an enlarged longitudinal horizontal sectional view at line3-3 of Fig. 1.

Figure 4 is a diagrammatic view at line 4-4 of Fig. 2 showing the powertake off or drive mechanism from a motor or engine.

Figure 5 is a vertical sectional view at line 5-5 of Fig. 1 showing thelever mechanism for rotatably adjusting the circular saw unit.

Figure 6 is a plan view of part of a tractor equipped with a chain sawand its operating mechanism.

Figure 7 is a side elevation of the structure in Fig. 6; and

Figure 8 is a sectional detail view, enlarged, at line 8-8 of Fig. 7.

In order that the general relation -and utility of parts may readily beunderstood I have shown in Figs. 1 and 2 a conventional tractor of thefour wheel type including a main frame F with the rear drive wheels W,and front steering wheels S controlled by wheel A, and equipped with asuitable power plant as a motor or engine M. The driver or operatoroccupies a seat B, and the gear shift lever G controls gears in the caseC in combination with the propulsion shaft P of the tractor. A suitabledriving mechanism for propulsion, and for operating the sawing machine,is illustrated as driven from the motor shaft I having a drive pulley 2of the multiple groove type over which the multiple belts 3 pass todriven pulley 4 on the propulsion shaft and around driven pulley 5 onthe saw operating shaft 6. The saw operating shaft 6, which extendslongitudinally of the tractor in parallelism with the motor shaft andthe propulsion shaft, is equipped with a suitable clutch l incombination with the multi-groove pulley 5, and a typical spool 8,spring 9, and hand lever mechanism l0 are shown for the clutchmechanism.

The saw operating shaft Iiv is journaled by spaced bearings II, II,within a rotatably adjustable and tubular housing l2, and the housingitself is journaled in spaced bearings l3, l3, rigid with the main frameF of the tractor.

For rotatably atfiusting the housing in its bearings withinapproximately one hundred and ninety degrees, a hand lever I4 is rigidlyclamped at I! on the exterior of the housing and equipped with a ratchetand pawl device It for co-action with a segmental rack gear I1 that isrigidly mounted on an adjacent bearing member I 3 of the housing, and itwill be apparent that the circular saw 18 may be turned and adjustedfrom horizontal position to vertical position, and also turned at otherangles within this range. In Fig. 1 the saw is in vertical position andadapted to cut logs in horizontal position, and when turned tohorizontal position the saw is adapted'for felling standing trees ortimber.

The circular saw ll is bolted at IS on the free end of a saw arbor orshaft 20, and this angularly disposed arbor is driven from the sawoperating shaft 6 through an intermediate gear couple including bevelgear 2! on the arbor and 22 on the shaft. The arbor is enclosed andstabilized within a tubular column or sleeve 23 and the sleeve isequipped with spaced journal bearings 24 for the arbor. The front end ofthe housing and the inner end of the sleeve are rigidly united by aflanged elbow joint 25 that is 3 bolted together at 2|, in order thatthe housing and sleeve and the shaft and arbor, by means of the handlever 14. may be turned or adjusted to selective position for the saw.

In the modified form of the invention shown in Figs. 8, 7, and 8, theinvention is converted for use as a chain sawing machine, andoperatively installed upon the tractor, the frontportion of which isillustrated in the top plan and side elevation views.

In this adaptation of the invention. the lower end of the saw arbor 20is equipped with a sprocket wheel 26 for the horizontally disposedendless chain saw 28, which extends transversely across the front of thetractor and is guided by the spacer blade or keeper ll attached at oneend by bracket 3| to the exterior of the sleeve 23.

The other end of the guide blade is attached by bracket 3| to the lowerend of a leg rigidly depending from a longitudinally disposed frame bar32 rigid with the frame 1", and the chain sawpasses around ahorizontally disposed idler sprocket wheel 33 journaled in the lower endof the depending leg.

The same motor operated driving mechanism and equipment are employed forsupplying power to the operating shaft 8 within the housing l2, and thehousing is rigidly mounted in bearings I3 mounted on the main frame F.

\Having thus fully described my invention, what I claim as new anddesire to secure by Letters Patent is:

In a power-operated saw, a main frame, bars carried by and extendingforwardly from said frame at opposite sides thereof and havingdownwardly extending arms at their front ends, one bar and its arm beingtubular and having adjoining ends detachably secured together andforming a gear housing, a drive shaft and a driven shaft rotatablymounted through the tubular bar and its arm and having adjoining endsconnected with each other by intermeshing beveled gears enclosed in thegear housing. said drive shaft having its rear end projecting from thetubular bar and the driven shaft having its lower end projecting fromthe lower end of the .tubular arm and carrying a sprocket wheel, an

idler sprocket wheel at the lower end of the arm of the other bar, abridging bar extending horizontally between the sprockets and supportedby upwardly extending brackets secured to lower end portions of thearms, and endless chain saw trained about the sprockets and having frontand rear portions extending longitudinally of the bridging bar inconfronting relation to the front and rear edge faces thereof, a motormounted upon said frame, and means for transmitting rotary motionbetween said motor and the rear end of the drive shaft.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

